UPDATE: Senator Tim Johnson of South Dakota announced his support of marriage equality. The pressure is working!

Senators Heidi Heitkamp and Joe Donnelly, who both hail from deeply red states, announced their support this week for marriage equality. If these two freshman senators from North Dakota and Indiana can stand on the right side of history, so can the few remaining Democratic hold outs in the Senate.

We are now down to the final three Democrats in the Senate who are standing on the wrong side of history on marriage equality: Mary Landrieu of Louisiana, Joe Manchin of West Virginia, and Mark Pryor of Arkansas. They need to hear from us now.

Tell the final three Democratic holdouts: Join your colleagues who support marriage equality and come out against the discriminatory Defense of Marriage Act.

The last few weeks have been exciting for marriage equality. Since mid-March, ten Democratic senators and two Republicans have come out in support of marriage equality. And the Supreme Court is considering whether to strike-down the discriminatory “Defense of Marriage Act,” and overturn California’s Proposition 8.

Now is the time to increase the public pressure on the remaining three senators to stand with their colleagues who support marriage equality and the repeal of the discriminatory Defense of Marriage Act.

Tell Senators Landrieu, Manchin, and Pryor: Come out in support of marriage equality with the rest of your Democratic colleagues.

Despite their conservative voting records, there is hope that the mounting pressure will encourage them to join with their colleagues and show concern for the gay and lesbian families who are treated unfairly under the Defense of Marriage Act, and don’t have access to the 1,100 federal protections and responsibilities that otherwise apply to married couples.

Tell the final three holdouts in the Senate’s Democratic Caucus to join their colleagues and support marriage equality.